Gas-stove.



L. J. F. CLEMENT.

GAS STOVE..

APPLICATION FILED SEPT. 11, 1915.

1,266,105. Patented Mayl, 1918.

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GI SCUS CLEMENT, 0F BOTTERDAM, NETHERLANDS, ASSJGNOR dz ZONE N LIMITED, OF T'ZEAM, NETHERLANDS.

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Specification of Letters Patent.

Patented May id, 1918.

Application filed September 11, 1915. Serial No. 50,252.

To all whom it may concern:

Be it @own that I, LEONIS Joaannns Fnancrsoos CLEMENT, a subject of the Queen of th Netherlands, and residing at 10d Schoonebergerweg, Rotterdam, the Netherlands, have invented certain new and useful Improvements in Gas-Stoves, of which the following is a specification. v

This invention relates to gas stoves and its object is to generally improve the construction of such apparatus.

The present invention has for its object to provide a gas stove having a high efiiciency without allowing the combustion gases to enter the room, immaterially whether the apparatus is connected to a strongly or a badly drawing chimney, that is to say, to provide a gas stove which is practically independent of the draft of the chimney,

According to the invention the purpose aimed at is attained by providing the gas stove with means by Whic s 1. Th influence of the draft of the chimmay on the combustion chamber of the apparatus is obviated within certain limits;

2. At a place outside the combustion chamber but in the immediate vicinity thereof a draft is produced for carrying away the gases which might possibly escape from the combustion chamber.

These means consist therein that the apparatus is provided with additional passages separated from the combustion chamber and from the normal flue, which assages open on one side into the room to e heated and on the other side into the common chimney.

One or more of these passages are arranged with regard to the combustion chamber, in such a manner that by the heat enerated in the latter a draft is produc in said passage or passages by which draft combustion gases not following the general path are carried away.

In the accompanying drawing a construo tional form of a as stove embodying the invention is shown y way of example.

Figure 1 is a sectional elevation of an open-front type of stove and Fig. 2 a top view of the apparatus.

The burners l situated beneath the incandescent bodies 2 behind which a fire-proof screen 3 is placed produce combustion gases which pass through the apparatus in the direction of the arrows 4 and finally escape through the outlet opening 5 to the exit duct 6 leading to the chimney.

According to th invention the stove is provided w1th passages 8, 7 and 12 separated rom the combustion chamber and from the general flue which passages are on one side connected to the room to be heated and on the other side to the common exit duct 6.

The passage 8 is placed in such a manner with regard to the combustion chamber that a draft is roduced therein by the heat en erated in t e combustion chamber, by w ich draft the air in the room is drawn in. By this draft combustion gases which, for example, by draft arising by the opening of a chamber door or any other reason, might escape in the direction of the room will be carried off by way of the passage 8, 7 to the common chimney.

From the arrows 4 and 10 it appears that th combustion gases which are practically unopposed drawn in through the passages 8 and 7 may have a greater speed than the gases carried away from the combustion chamber, as these are on their way to the exit duct 6 obstructed by partitions ,or the like in order to have them give off the greatest possible part of their heat to the surroundings. In this manner a high eificiency is obtained without the combustion gases being liable to escape into the room, and as the air passages surround the exit 5 and terminate in advance thereof, it will be seen that the heated air passing through said passages, will exit into duct 6 with sufficient velocity to aid in drawing the products of combustion through the exit 5.

Having now described my invention what I claim as new and desire to secure by Letters Patent is 1. In a gas stove of the open front type, the combination with a burner, an exit duct communicating with a stove pipe or chim-v ney, an exit for the products of combustion, leading in to said exit duct, and an air passage surrounding said exit and discharging into said exit duct in the direction of the draft, said passage being arranged alon one surface of the stove for the purpose of eating said passage and having an opening therein to permit the entrance of air.

2. In a gas stove of the open-front type, the combination of a burner, an exit duct for the products of combustion adapted to be brought into communication with a stove pipe or chimney, an air duct surrounding the exit ductend terminating in advance thereof, and air passages discharging into said air duct, one of the said passages leading from the front'of the stove near the upper part of the opening therein end entending across the top of the stove to said air duct, substantially as described 3. In a gas stove of the open front type, the combination with a burner of an exit duct communicating with a stove pipe or chimney, an exit for the products oi combustion leading to said exit duct, end eir messes passages discharging into seidenit duct in the direction of the draft, one of said pes- 5 sages leading from the front of the stove to seid exit' duct.

in testimony whereof I have signed my 20 name to this specification in the presence of two subscribing Witnesses.

LEONEELJOHANNES FBANUISCUS CLEMENT. Witnesses:

C. VAN Down, 15. (I. VAN V nnNnns. 

